Determination of Lanthanoids in Seawater by Inductively Coupled Plasma Mass Spectrometry after Pre-Concentration with a Chelating Resin Disk — Oak Academic Publishing
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Determination of Lanthanoids in Seawater by Inductively Coupled Plasma Mass Spectrometry after Pre-Concentration with a Chelating Resin Disk
Faculty of Science and Technology, Sophia University, Tokyo, Japan
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Faculty of Science and Technology, Sophia University, Tokyo, Japan
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Faculty of Science and Technology, Sophia University, Tokyo, Japan
1 Faculty of Science and Technology, Sophia University, Tokyo, Japan
2 Faculty of Science and Technology, Sophia University, Tokyo, Japan
3 Faculty of Science and Technology, Sophia University, Tokyo, Japan
A seawater sample was analyzed for its lanthanoids (Ln’s) contents by inductively coupled plasma mass spectrometry (ICP-MS). The analytical procedure included the pre-concentration and partial purification of Ln’s with a chelating resin disk and the employment of the combination of the internal standard and standard addition methods in ICP-MS, which seemed indispensable for the determination of low-level Ln’s by ICP-MS. The recoveries of the Ln’s with the disk were mostly 70% or better with the concentration factor of 200. The measured concentrations of Ln’s were on the order of ng ? dm – 3 or lower and reasonable except that of neodymium and samarium.
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